Railway car



March 7, 1933. E SCHLQTZ 1,900,134

RAILWAY CAR Filed Feb. 4. 1929 2 Sheets-Sheet l INVENTOR. E. E \Sch/ofz March 7, 1933. E. E. SCHLOTZ RAILWAY CAR 2 Sheets-Sheef 2 Filed Feb. 4, 1929 TTORNEY.

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Patented Mar, 7, 1933 PATENT OFFIC ELMER E. SCHLOTZ, OF DENVER, COLORADO RAILWAY CAR Application filed February This invention relates to improvements in railway cars, its primary object being to provide by a novel construction and arrangement of movable trucks, a railroad car capable of moving around railway curves irrespective of its length and without detrimental stresses either on the body of the car or on the trucks on which the body is supported, or on the connections between the body and the trucks.

By the use of my invention railway cars of more than ordinary length may be used with the utmost safety and without danger of its wheels leaving the track or binding upon the rails at curves.

The above object is obtained by providing for a pivotal motion of the and trucks of a car and a combined pivotal and lateral motion of other trucks of the same, and a further object of the invention resides in the provision of an improved method of mounting the trucks for both pivotal and lateral movements, that insures strength and practicability in use and that permits of relative movements of the trucks and the car body with very little frictional resistance.

Other objects of the invention will be brought out in the course of the following description with reference to the accompanying drawings.

In the drawings in the several views of which like parts have been similarly designated,

Figure 1 is a side elevation of a railway car of more than ordinary length, constructed in accordance with my invention,

Figure 2, a more or less diagrammatic plan view of a railway curve showing the position of two of the trucks of the car of the type shown in Figure 1, with relation thereto,

FigureB, a sectional and fragmentary plan view of a aterally movable truck of the car, in its operative position relative to the body of the same,

Figure 1, a side elevation of the truclcon the car body, the fioor of the car body having been shown in section,

Figure 5, a transverse section of the truck on the line 5-5, Figure 3, and

Figure 6, a longitudinal section of the truck taken along the line 6-6, Figure 3.

4, 1929. Serial No. 337,251.

The body 5 of the car has a preferably concrete floor 6 the underside of which has'rec- (angular recesses 7 to admit pivot-blocks 8 forming an integral part of the bodies 9 of the trucks. The recesses are metal lined as indicated at 10 to provide wear-resisting bearing-faces for the pivot-blocks.

The ivot-blocks 8 have rounded end faces 12 bearing against the ends of the recesses and side faces 13 that slant in opposite directions toward the end faces from an intermediate line. The side faces bear at their apexes against the sides of the recesses, as best shown in Figure 3. The pivot-block of each truck forms an integral part of a body 9 on which the wheels 14 are mounted.

At the ends of the car, the trucks indicated at A in Figure 1, have a pivotal movement only and the boxes 15 of the wheels are in direct and rigid connection with the body of the trucks, but at intermediate points of the car, the trucks, shown at B in Figure 1, have a lateral motion as well as a pivotal movement and the boxes 15 of the wheels are with this purpose in view, mounted on a Iplate 16 that may slide with relation to the ody of the truck.

In either construction the truck body is mounted for pivotal movement by means of a king bolt 17 set in a central opening of the recess and extending into an alined opening of the truck body, and in order to relieve the king bolt of stress, guide pins 18 on the floor of the car body project into slots 19 at opposite ends of the truck body concentric with the king bolt. a

It is desirable that the trucks be capable of tilting with relation to the car body, to maintain the body on an even keel at banked railway curves where the outer rail is at a higher elevation than the inner rail; With this purpose in view the pivot-block of the truck body is curved transversely, as shown at 20 in Figure 5, and coiled springs 21 set in cavities inthe upper surface of the recess and beyond the sides of the same, engage the pivot block of the body and parts of the body beyond the sides of the block, to yieldingly resist movement of the car body under ordinary conditions.

()n the trucks that provide for a lateral motion relative'to the car body, the boxes for the wheels of the trucks are mounted on side frames 22 of the before mentioned slide plate 16. The truck body has slide-ways 23 to admit the ends of the'plate 16 and its surface between the slide-ways is even and substantially parallel with the upper surface of the plate.

Anti-friction rollers 24 and 26 in the slideways, are engaged by the edges and the under-surfaces of the ends of the plate extending in the slide-ways 23 and series of rollers- 25 set in recesses of the under-surface of the truck body are engaged by the upper surface of the plate.

The rollers extend in series along the respective faces of the truck body, so as to engage the slide plate during all of its movements relative to the body when the car of which the trucks are parts, rounds a curve of a railway, as illustrated in Figure 2.

It will be readily apparent that-a railway car constructed in accordance with the present invention, as shown in the drawings and hereinbefore described, may freely round railway curves of any established radius, irrespective of its length, owing to the pivotal motion of its end trucks and the combined pivotal and lateral movements of the intermediate trucks.

The invention thus permits of building cars much longer than those at preserm in use, which means a great saving in the expenses of construction, maintenance and operation on the part of the railway operators,v

and greater convenience on the part of the traveling public.

The spring-controlled vertical play of the trucks maintains the car bodies on a, level when tracks are banked at their curves, and thereby contributes largely to the comfort of the passengers.

What I claim and desire to secure by Letter Patent is:

1. In a railway car, a car body having a recess in its under surface, atruck having a pivot-block fitted for rotation in the recess, a king-bolt in the center of the pivot-block, and means outside the center to guide the block in its rotary motion.

2. In a railway car, a car body, and a truck for the body, having relative rotary movements in horizontal and vertical planes, and rgaging a sliding movement laterally of the 3. In a railway car, a car body having a straight-sided recess, and a truck for the body, having a pivot-block in tangential contact with opposite sides of the recess.

4. In a railway car, a car body having a straight-sided rectangular recess, and a truck for the body, havin a pivot-block in tangential relation to the our sides of the recess.

5. In a railway car, a. car body having a momma Taces of the two members.

' 7. In a railway car, a car body recessed at its under side, a truck com rising an upper member separately fitted or rotary movements in the recess in vertical and horizontal planes, and a nonivoted wheelrsupporting lower member slida 1e on the pivotal member to move laterally with relation to the same.

In testimony whereof ll have afixed my signature.

ELMER E. SCHLOTZ. 

